高能级强夯法在石油化工项目处理湿陷性黄土中的应用

Application of high energy level dynamic compaction to ground improvement of collapsible loess for petrochemical project

对甘肃董志石油化工项目中3000～15000kN·m能级强夯处理湿陷性黄土地基的设计、施工、检测进行系统全面的研究,其中12000、15000kN·m能级均为国内处理湿陷性黄土的最高能级。通过标准贯入试验、室内土工试验、静力触探试验、瑞利波试验、平板载荷试验对强夯加固效果进行综合检测,得出有效加固深度、湿陷性处理效果等结论,并提出适应该地区强夯法处理深度的经验公式,为湿陷性黄土地基处理设计、施工、检测提供参考。

We have some construction about 3000-15000kN·m energy dynamic compaction for collapsible loess.Through comprehensively analying the results of standard penetration test,soil mechanics experiment,cone penetration test,Rayleigh test,static test,and comparing with other energy dynamic compaction result of collapsible loess,some outcomes of effective reinforced depth and coefficient of collapsibility are obtained.Finally,an empirical equation for dynamic compaction of this area is proposed;and it can be for reference in design,construction and detection of collapsible loess.